On the top of the battery in my 120D which is 18months old, there is a small inspection hole which, according to the label attached to the top of the battery, displays green if the battery is sufficiently charged, black if it is insufficiently charged, and yellow if it requires replacement.
I have always checked this when doing the usual oil, tyres and water checks, and it has always been green.
6 weeks ago I noticed that it was black. I have since rechecked it and it is still black.
There has been no sign of any charging problems, the car has always been a good starter, and I always ensure that nothing is left switched on when leaving the car. My weekly mileage is approx 200 and so this shouldn't be a problem.
Should I be concerned about this and ask for a replacement from BMW or should I ignore this as not being a problem.
Fenders
I have always checked this when doing the usual oil, tyres and water checks, and it has always been green.
6 weeks ago I noticed that it was black. I have since rechecked it and it is still black.
There has been no sign of any charging problems, the car has always been a good starter, and I always ensure that nothing is left switched on when leaving the car. My weekly mileage is approx 200 and so this shouldn't be a problem.
Should I be concerned about this and ask for a replacement from BMW or should I ignore this as not being a problem.
Fenders